IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Ethene with Water
Components:
   (1) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (2) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
Original Measurements:
   Wu, Z.; Zeck, S.; Langhorst, R.; Knapp, H., Proc. Int. Conf. Coal Gas and Air, Beijing, China, 1985, 1, 209-229.

 Variables:
   Temperature = 298.15 K
   Pressure = 100 (1 bar) kPa

 Prepared By:
   W. Hayduk

 Experimental Remarks:
   Values personally received from the first author for the gas and liquid phase compositions corresponding to a pressure of 1 bar were respectively: y1 = 0.968, and x1 = 0.0000824 mole fraction.

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   
T/KOstwald coefficient L [cm3 gas(cm3 solvent)]Henry's law constant, K [Kbar]Mole Fraction (x1)x1 Note
298.150.118114908.632
 Notes:
   1  Calculated by compiler.
   2  Calculated by the compiler for a gas partial pressure of 101.325 kPa.

 Method/Apparatus/Procedure:
   Ethylene gas was stored in a glass burette equipped with an accurate manometer for measuring pressure and situated in a constant temperature air bath. A known quantity of completely degassed solvent was charged into an equilibrium cell immersed in a liquid bath. The volume of gas absorbed was measured after the gas was admitted into the cell. The solubility was determined from the quantities of gas and solvent used. The apparatus and procedure are described in detail in Ref. 1.

 Source and Purity of Materials:
   1. Ethene purity was 99.9 vol. percent.
   2. Water was bidistilled and had a conductivity of 2 micromhos/cm.

 Estimated Errors:
   Solubility: δL/L = ± 0.01
   Temperature: δT/K = ± 0.01
   Pressure: δP/kPa = ± 0.05

 References:
   1. Zeck, S. Doctoral Dissertation, Tech. Univ. Berlin, FRG, 1985